Raw video as emergency workers respond to a serious crash in Knightdale.

Troopers said Mattson was speeding when she passed another car in a no passing zone, lost control, and skidded off of the road, into the pond - becoming submerged 15 feet deep.

The teen was able to get out and swim to safety.

Mattson and the child were rushed via ambulance to WakeMed; however, the 6-month-old was pronounced dead upon arrival.

Authorities are pulling a car from the water now. We did see an adult and what appeared to be a child pulled from the pond earlier, and rushed inside an ambulance. We don’t know their condition or if they were injured. #ABC11pic.twitter.com/7cIgPMUgJ4

After pulling the two people from the water, authorities began pulling the car from the pond.

Knightdale spokesman Jonas Silver said the child was in the backseat, in a car seat.

The car was submerged in about 12 feet of water, he said.

Several law enforcement officials near a pond not far from East Wake Middle School. We did see Coroner’s Office leaving in last 10 minutes. Highway Patrol not releasing any info #ABC11pic.twitter.com/TdJPazq52W